Rock Identifier

Category

Mineral, Jewelry

Browse mineral, jewelry specimens identified by the Rock Identifier community.

Learn about Mineral, Jewelry in the encyclopedia

Glauconite

Hutcheonite

Halite

Sperrylite

Baddeleyite

Anatase

Brookite

Talc

Euxenite

Eltyubyuite

Buergerite

Dolomite

Fluorite (tumbled pebble) (Calcium Fluoride (CaF2)) — mineral

Fluorite (tumbled pebble)

Calcium Fluoride (CaF2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Lapis Lazuli ((Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2 (Complex silicate rock)) — metamorphic

Lapis Lazuli

(Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2 (Complex silicate rock)

Quartz crystal pendant (Quartz (silicon dioxide, SiO₂), likely rock crystal or milky quartz) — mineral

Quartz crystal pendant

Quartz (silicon dioxide, SiO₂), likely rock crystal or milky quartz

Green aventurine pendant (Quartz variety, SiO₂, colored mainly by fuchsite or other chromium-bearing mica inclusions) — mineral

Green aventurine pendant

Quartz variety, SiO₂, colored mainly by fuchsite or other chromium-bearing mica inclusions

Tumbled Black Stone (Unknown, possibly Obsidian, Onyx, or Tourmaline) — igneous or mineral

Tumbled Black Stone

Unknown, possibly Obsidian, Onyx, or Tourmaline

igneous or mineral

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Snowflake Obsidian (Obsidian with Cristobalite inclusions (SiO2)) — igneous

Snowflake Obsidian

Obsidian with Cristobalite inclusions (SiO2)

Prehnite (Prehnite (Ca2Al(AlSi3O10)(OH)2)) — mineral

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

Fossilized bone or tooth fragment (Indeterminate fossil bone; possibly mammalian or reptilian) — fossil

Fossilized bone or tooth fragment

Indeterminate fossil bone; possibly mammalian or reptilian

Tumbled amethyst (Amethyst, purple variety of quartz (SiO₂)) — mineral

Tumbled amethyst

Amethyst, purple variety of quartz (SiO₂)

Polished labradorite (likely) (Labradorite, a plagioclase feldspar; approximately (Ca,Na)(Al,Si)₄O₈) — mineral

Polished labradorite (likely)

Labradorite, a plagioclase feldspar; approximately (Ca,Na)(Al,Si)₄O₈

Polished black tourmaline (schorl), likely a carved or polished specimen (Schorl, NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄) — mineral

Polished black tourmaline (schorl), likely a carved or polished specimen

Schorl, NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄

Amethyst cluster (Quartz (SiO₂), purple variety; crystalline quartz cluster) — mineral

Amethyst cluster

Quartz (SiO₂), purple variety; crystalline quartz cluster

Tumbled amethyst (Amethyst, purple variety of quartz (SiO₂)) — mineral

Tumbled amethyst

Amethyst, purple variety of quartz (SiO₂)

Likely black tourmaline (schorl), shown as a rough fragment and polished cabochon (Schorl, NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄) — mineral

Likely black tourmaline (schorl), shown as a rough fragment and polished cabochon

Schorl, NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄

Smoky quartz crystal (Quartz (SiO₂), likely smoky variety) — mineral

Smoky quartz crystal

Quartz (SiO₂), likely smoky variety

Amazonite (Microcline (KAlSi3O8)) — mineral

Amazonite

Microcline (KAlSi3O8)

Strawberry Quartz (Silicon Dioxide (SiO2) with hematite or goethite inclusions) — mineral

Strawberry Quartz

Silicon Dioxide (SiO2) with hematite or goethite inclusions

Sunstone (Plagioclase Feldspar (Na,Ca)(Al,Si)4O8) — mineral

Sunstone

Plagioclase Feldspar (Na,Ca)(Al,Si)4O8

Amazonite (Microcline (KAlSi3O8)) — mineral

Amazonite

Microcline (KAlSi3O8)

Prehnite (Prehnite - Ca2Al(AlSi3O10)(OH)2) — mineral

Prehnite

Prehnite - Ca2Al(AlSi3O10)(OH)2

Prehnite with Epidote (Prehnite (Ca2Al(AlSi3O10)(OH)2) with Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))) — mineral

Prehnite with Epidote

Prehnite (Ca2Al(AlSi3O10)(OH)2) with Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))

Botryoidal Quartz or Chalcedony (Silicon Dioxide (SiO2)) — mineral

Botryoidal Quartz or Chalcedony

Silicon Dioxide (SiO2)

Bicolor or Tricolor Tourmaline (Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)) — mineral

Bicolor or Tricolor Tourmaline

Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)

Sodalite (Sodalite (Na8Al6Si6O24Cl2)) — mineral

Sodalite

Sodalite (Na8Al6Si6O24Cl2)

Emerald in Matrix (Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities) — gemstone

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Quartz Druzy on Matrix (Silicon Dioxide (SiO2)) — mineral

Quartz Druzy on Matrix

Silicon Dioxide (SiO2)

Dendritic Quartz (Silicon Dioxide (SiO2) with Manganese Oxide inclusions) — mineral

Dendritic Quartz

Silicon Dioxide (SiO2) with Manganese Oxide inclusions

Quartz Druzy (Silicon Dioxide (SiO2)) — mineral

Quartz Druzy

Silicon Dioxide (SiO2)

Amazonite (K(AlSi3O8)) — mineral

Amazonite

K(AlSi3O8)

Amethyst Geode (Amethyst/Purple Quartz (SiO2)) — mineral

Amethyst Geode

Amethyst/Purple Quartz (SiO2)

Amethyst (Silicon dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon dioxide (SiO2) with iron impurities

Amazonite (K(AlSi3O8) - Potassium Aluminum Silicate) — mineral

Amazonite

K(AlSi3O8) - Potassium Aluminum Silicate

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Citrine Quartz (Silicon Dioxide (SiO2) with iron impurities) — mineral

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Druzy Quartz (on Chalcedony/Agate base) (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz (on Chalcedony/Agate base)

Silicon Dioxide (SiO2)

Tiger's Eye (Pseudomorph of Quartz (SiO2) after Crocidolite) — mineral

Tiger's Eye

Pseudomorph of Quartz (SiO2) after Crocidolite

Smoky Quartz in Matrix (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz in Matrix

Silicon Dioxide (SiO2)

Amazonite (KAlSi3O8 (Potassium Aluminum Silicate)) — mineral

Amazonite

KAlSi3O8 (Potassium Aluminum Silicate)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)